You are a writer in the sense that a woodpecker is a carpenter

Some types of woodpecker, such as the Pileated Woodpecker (dryocopus pileatus), actually do dig further than just the surface of trees. They use their bill to drill deep into the tree, often old pine trees, in order to carve out a cavity in which to build their nest. You may also see them tapping at and removing the bark around the entrance in order to make sap flow across the surface. This is to make it harder for predators to cling on while attacking the nest.

Some types of woodpecker also use their bill to hammer on trees as part of their courtship rituals and all use it to dig for food, such as termites.

Pecking away at your typewriter or keyboard. Scratching little symbols into wood or wood pulp or maybe just electronically. Little tips and taps. Small little noises, heard from the next room. Tap. Tap. Tap.

The scratches take a form. The lines are drawn. Nothing is solid, though. Nothing has much to it. Just scratches, tiny holes. No depth.